SC-900 Practice Test 33 — 15 Questions

Question 1

A company's security operations center wants to detect advanced attacks targeting their on-premises Active Directory, such as Kerberos Golden Ticket attacks, pass-the-hash, and skeleton key malware. They need a solution that monitors domain controller traffic, correlates with entity behavior, and integrates with Microsoft Sentinel for incident response. Which Microsoft security solution should they deploy?

Choose an answer to begin — your selection is scored in the full session.

Accepted Answer

Microsoft Defender for Identity. Microsoft Defender for Identity (MDI) is the correct solution because it is specifically designed to monitor on-premises Active Directory traffic, including domain controller network traffic, and uses entity behavior analytics to detect advanced attacks like Kerberos Golden Ticket, pass-the-hash, and skeleton key malware. It integrates natively with Microsoft Sentinel to enable automated incident response and investigation.

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Microsoft Defender for Endpoint

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Microsoft Defender for Cloud

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Microsoft Sentinel

Question 2

A company uses Microsoft 365 E5 and is concerned about advanced phishing attacks that use adversary-in-the-middle (AiTM) techniques to steal session cookies and bypass multifactor authentication. Which Microsoft Defender for Office 365 feature should they configure to specifically protect against this type of attack?

Accepted Answer

Anti-Phishing (advanced policies). Advanced anti-phishing policies in Defender for Office 365 include protection against adversary-in-the-middle (AiTM) attacks by using machine learning models and impersonation detection to analyze and block phishing attempts that aim to steal session cookies and bypass multifactor authentication. This feature specifically detects and mitigates sophisticated phishing techniques that traditional anti-spam or link-checking mechanisms might miss, such as real-time credential harvesting and session hijacking via proxy servers.

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Safe Attachments

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Safe Links

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Campaign Views

Question 3

A hospital encrypts patient data stored in a database using AES-256 encryption. If an attacker manages to copy the database file, they cannot read the protected information. Which security goal is primarily achieved by this encryption measure?

Accepted Answer

Confidentiality. AES-256 encryption ensures that even if an attacker gains unauthorized access to the database file, the data remains unreadable without the decryption key. This directly protects the secrecy of the patient data, which is the definition of confidentiality. In the context of the SC-900, encryption at rest is a primary mechanism for achieving confidentiality of stored data.

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Integrity

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Availability

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Auditability

Question 4

A legal team needs to preserve all electronic documents related to an ongoing lawsuit. These documents reside in Exchange Online mailboxes, SharePoint Online sites, and OneDrive for Business accounts. The team also needs the ability to search across these locations for specific keywords and export the results for review. Which Microsoft Purview solution should they use?

Accepted Answer

Microsoft Purview eDiscovery (Premium). Microsoft Purview eDiscovery (Premium) is the correct solution because it provides end-to-end workflow for preserving, searching, and exporting content from Exchange Online mailboxes, SharePoint Online sites, and OneDrive for Business accounts. It supports legal hold to preserve data, keyword search across these sources, and export of results for review, meeting all requirements of the legal team.

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Microsoft Purview Data Lifecycle Management

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Microsoft Purview Data Loss Prevention

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Microsoft Purview Audit

Question 5

A financial services firm must comply with regulatory requirements that mandate supervisory review of communications between advisors and clients. They need to automatically capture emails and Microsoft Teams messages from a specific group of advisors, assign them to a supervisor for review, and flag messages containing potential code words for insider trading. Which Microsoft Purview solution should they use?

Accepted Answer

Microsoft Purview Communication Compliance. Microsoft Purview Communication Compliance is the correct solution because it is specifically designed to capture and review communications (email, Teams messages) for regulatory compliance, such as supervisory oversight of advisor-client interactions. It can automatically flag messages containing sensitive keywords or patterns (e.g., potential code words for insider trading) and route them to designated supervisors for review, meeting the firm's regulatory mandate.

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Microsoft Purview Data Lifecycle Management

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Microsoft Purview Information Protection

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Microsoft Purview Insider Risk Management

Question 6

A security team wants to monitor and proactively defend against cyber threats across their entire infrastructure, including Azure virtual machines, on-premises servers, and AWS workloads. They need a unified solution that provides endpoint detection and response (EDR), vulnerability management, and threat hunting capabilities. Which Microsoft security solution should they use?

Accepted Answer

Microsoft Defender for Endpoint. Microsoft Defender for Endpoint (B) is the correct answer because it provides unified endpoint detection and response (EDR), vulnerability management, and threat hunting across heterogeneous environments, including Azure VMs, on-premises servers, and AWS workloads. It extends beyond Windows to support Linux and macOS endpoints, and can be onboarded via Microsoft Defender for Cloud for multi-cloud visibility, making it the single solution that meets all the stated requirements.

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Microsoft Defender for Cloud

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Microsoft Sentinel

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Microsoft Defender for Cloud Apps

Question 7

A company uses Microsoft Entra ID. They want to require users to perform multifactor authentication (MFA) every 90 days on trusted devices, but force MFA for every sign-in on untrusted devices. Which Conditional Access session control must they configure to meet this requirement?

Accepted Answer

Sign-in frequency. Sign-in frequency is the Conditional Access session control that allows administrators to define the time interval after which a user must re-authenticate, even on a trusted device. By setting the sign-in frequency to 90 days for trusted devices and requiring re-authentication for every sign-in on untrusted devices (by setting the frequency to 0 or 1), the requirement is met. This control directly manages the re-prompt interval for MFA, independent of the session token lifetime.

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Application enforced restrictions

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Use app enforced restrictions

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Persistent browser session

Question 8

A company is migrating its on-premises workloads to Azure. The CISO wants to understand the division of security responsibilities between Microsoft and the customer across cloud service models. For which cloud service model does the customer have the most security responsibility?

Accepted Answer

Infrastructure as a Service (IaaS). In the Infrastructure as a Service (IaaS) model, the customer is responsible for securing the operating system, applications, data, and network configurations, while Microsoft only secures the physical datacenter, host servers, and hypervisor. This gives the customer the most security responsibility compared to PaaS or SaaS, where Microsoft manages more of the stack.

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Software as a Service (SaaS)

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Platform as a Service (PaaS)

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On-premises

Question 9

A company wants to improve its security posture across Microsoft 365. The security team needs a central dashboard that provides a score based on current security configurations, gives recommendations for improving the score, and allows tracking of improvement actions over time. Which Microsoft security solution should they use?

Accepted Answer

Microsoft Secure Score. Microsoft Secure Score is the correct solution because it provides a central dashboard that calculates a numerical score based on the tenant's current security configurations across Microsoft 365 services. It offers prioritized improvement actions, tracks progress over time, and allows security teams to monitor and manage their security posture in a single view.

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Microsoft Defender for Cloud Apps

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Microsoft Purview Compliance Manager

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Microsoft Intune

Question 10

A company's security team needs to detect and investigate potential data theft by employees who have legitimate access to sensitive data. They want a solution that uses heuristics and behavioral analytics to identify risky user actions such as data exfiltration to personal cloud storage. Which Microsoft Purview solution should they use?

Accepted Answer

Microsoft Purview Insider Risk Management. Microsoft Purview Insider Risk Management is the correct solution because it is specifically designed to detect, investigate, and act on risky user activities that may lead to data theft, using heuristics and behavioral analytics. It correlates signals from Microsoft 365 and Azure services to identify patterns like data exfiltration to personal cloud storage, which aligns directly with the scenario's requirements.

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Microsoft Purview Data Loss Prevention (DLP)

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Microsoft Purview Audit (Standard)

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Microsoft Purview Information Barriers

Question 11

A company uses Microsoft Defender for Cloud to secure their Azure environment. The security team needs to check whether their resources comply with the CIS (Center for Internet Security) benchmark. How can they view their compliance status against CIS in Defender for Cloud?

Accepted Answer

Use the Regulatory Compliance dashboard and add the CIS standard as a compliance initiative. The Regulatory Compliance dashboard in Microsoft Defender for Cloud allows you to add built-in compliance standards like CIS as an initiative. Once added, the dashboard continuously assesses your Azure resources against the CIS benchmark controls and displays pass/fail status. This is the correct method because Defender for Cloud integrates with Azure Policy to evaluate compliance against regulatory standards.

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Use the secure score recommendations and look for CIS-related controls

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Use Azure Policy initiative assignments directly from the Policy service

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Use the vulnerability assessment solution for machines to check CIS settings

Question 12

A financial institution uses Microsoft 365 and needs to prevent employees from accidentally sharing sensitive financial data (e.g., account numbers) via email. They also need to inform the sender with a policy tip if they attempt to send such data and block the email if it's shared externally. Which Microsoft Purview solution should they use?

Accepted Answer

Data Loss Prevention (DLP). Microsoft Purview Data Loss Prevention (DLP) is the correct solution because it is specifically designed to detect, warn, and block the accidental sharing of sensitive data—such as financial account numbers—via email. DLP policies can be configured with conditions that trigger a policy tip to inform the sender and automatically block the email if it is sent externally, meeting both requirements.

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Information Protection (Sensitivity labels)

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Communication Compliance

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Records Management

Question 13

A company uses Microsoft Entra ID to manage identities. They want to enforce access policies based on user location, device compliance, and application sensitivity. Which Microsoft Entra ID capability should they use?

Accepted Answer

Conditional Access. Conditional Access is the correct capability because it allows administrators to create policies that enforce access controls based on conditions such as user location, device compliance, and application sensitivity. These policies evaluate signals at sign-in time and can require multi-factor authentication, block access, or grant limited access based on the defined conditions.

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Microsoft Entra ID Protection

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Privileged Identity Management (PIM)

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Microsoft Entra Connect Sync

Question 14

An organization uses Microsoft Entra ID and wants to require users to re-authenticate every 4 hours when accessing a critical financial application, even if the user already has an active sign-in session. Which Conditional Access control should be configured?

Accepted Answer

Session control 'Sign-in frequency'. The 'Sign-in frequency' session control in Conditional Access allows administrators to specify the time interval after which a user must re-authenticate, even if they have an active session. By setting this to 4 hours, the organization ensures that users re-authenticate before accessing the critical financial application, overriding any existing session tokens.

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Grant control 'Require multi-factor authentication'

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Session control 'Persistent browser session'

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Grant control 'Require device to be marked as compliant'

Question 15

A company is implementing a new security policy that requires every user to have only the minimum permissions necessary to perform their job duties. Which security principle does this policy align with?

Accepted Answer

Principle of least privilege. The policy requiring every user to have only the minimum permissions necessary to perform their job duties directly aligns with the Principle of Least Privilege. This principle dictates that users, applications, and systems should be granted the minimal level of access rights needed to complete their tasks, reducing the attack surface and limiting potential damage from compromised accounts. In Microsoft 365, this is implemented through Role-Based Access Control (RBAC) roles and Azure AD roles, where administrators assign specific permissions rather than broad administrative roles.

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Defense in depth

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Zero Trust

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Separation of duties